Spray-nozzle.



J. L. FITTS.

SPRAY NOZZLE.

APILIGATION FILED mm. z, 1917.

LQEQAQW Patented Mar. 10, 1914.

INVENTOR James Logan F2175 WITNESSES A T,TORNE Y iimiinsfnouizin 3l3'ZifE'fS,'01 :ennsnnnnn TOWNSHIP, cnnnnni cousin's, new

Specification of Letters Patent Pnien'ieoi Minn 1W ll-W 34i.

iiplclication filed fieplzcnilicr 2, 1 .2913.v Seriiiilflo. 78?,539.

To all 'w/iom 2'16 may concern then known izhnt ll,- Jnmcs Loom-1 Fliers. citizen of United Shiites, and i'esiilenk of Pensnuhien township, county of Camrlen, uncl Since oi: New Jersey, here ini'enied an Improvement in Spi ey-ll'ozzles, of. which the following is s, specification.

The ohjeciyoi my invention is to provide shape oi? the casingihrough Which the water flows before being released in the form of" spray, and my invention particularly corn prehends the temporary manual displacement of the relation oi": the spi 'nl guiclewagl' to the casing whereby the water may fillll a direct passage about the spiral guidewny for flushing out the casing and guiden'uy. The'ini uovcment is of such nature that this flushing or cleansing operation may he mirriecl on WlijliOUlZ interrupting khe' flow of the water or in any Way stopping the operation of theepparetus in which the nozzle is located.

More specifically, my invention consists of s casing ionizing a conical passage ierminah ing' in a nozzle opening at the small end and having a Water inlet at the large end,

combined with a conical plug fitting ilhei smaller end oi the passage and having spiral grooves throughwhich the water flows ind by which il; is given 3 spiral movement, the

pressure of the water acting to hold the plugin operative position. in the casing; the construction being such that the plug may he freely pushed backward into the larger P01- tion of the passage to provide an annular pussag'c'ior the direct flow of the Water for flushing out the nozzle whcncverut becomes oliistrncleu.

My in'veniiiiin may also he provided with :i S fh'lg within the casing or otherwise, so urrangecl thut it automatically iorces the instant removal of the obstructing" plug g inio its operative position and holdsic there when the 'cmtenis shut oil.

filly invention also coinpi'eheiuls other cle tails of construction which, togeiher Willi the features above sg'iccifiecl, will. loo hctier understood by reference to the drawings, in which Figure 1- a sectional elevation of n spiny nozzle ernhooying my impcoven'ients; 2 zi plen view oil the mil li' i isn longitudinal section of the plug having the spiral grooves; and is an elevuw lilOll of s henrl tool for temporarily clisplacing the gtvluo: tion. v i i A is thecesing, having the conical passage or chamber A made with an orifice l) at its during; the cleansing operzr smaller end. The larger crud ollhe casingv v screwsinto' a socket part B of :1 base ll which hasn threaded nipple for attachment to .ihe pipe through which ihe Willi?! is fe l to the nonzle. Arranged Within the conicnl chamber is a conical plug having spiral grooves about its periphery, enclwhich, with the walls elf-the chamber A, form spiralchzinncls Through which the water caused to low (mil :u'celeriiie its speed. so that us it passes from the opening J ii'is disrupted into fine spray by centrifugal force" and impact. The force of the Water Will holcl the plug in place Within lIllG conical chamher, but I prefer to employ n coiled spring I). so ii'u'meil us (go snugly if the large cnil oil the chninher A zinrl having has large diameterresting u on n annulus shouhlcr l3 oi? the socket B, and having its smaller clminet'er ternin'niiing 1n an insumecl end which 13 clirectedcenimlly at D against the plug and preferably fitting into a recess F therein, for the purpose of normally holding the plug inposition when the Water pressure is turned oil. W'lnle I prefer to employ: this spring D31 (lo not restrict myself thereto;

v'lhe shape of the plug (J is such that ii occupies only a portion of the Whole length of the conical chamber, as clearly indicated in the drawing". By rensonof this, the plug may he pushed inwzird' toward the larger end of the chamber and thereby permis the water to rush directly through the chamber all about thcaplug, so as to wash out the mini chamber an plug allpon relensing ihe plug, it is insinntlybrought to its nnopoi" operative Positionjby the spring D and Water presure, either or both. To facilitate may stand back oft-he nozzle.

this displacement of the plug for'cleansing, I provide a small hand tool shown in Fig. 52. consisting ofthe handle part Handshank l bent into a hook shapeand terminating in a point J. Thispoint, is inserted through the aperture E and into the recess G- of the. plug, and by. pulling back on the handle H.

the plug is pushed inward. The rush of the water throu h the nozzle, during the operation does not reach the person as he air Washer employs large numbers of these spraying nozzles, it will be 'seen that they can be rapidly cleansed without turning off the r-alter or'drsmanthng the nozzles them-- selves.

\Vliile I have shown the nozzle in the particular form I have used in practice,

I do not confine myself to any particular .detailsot construction, as my invention comprehends the casing and plug providing spiraln'ater grooves and relatively adjustable duringthe Flow of :the water that the said parts may be relatively dlsplaced toprovide an annular passage about the plug rectly rush, and therefore the construction shown is by way ot example only.

Havin g 110W described my invention, What It 'claiin'as. new and desire to secure by Letters Patent, is: v v 1. In a spraying nozzle,-thecombination of-a casing having a conical chamber-terminating at its'sniall end in a spraying aperture, a base to which said casing is removably secured, said base ha-i'inl an inlet'for pressure fluid and an annular abutment en.-

circling said inlet and projecting circum As a single I I 0 l l ferentially within said conical chamber ad a cent the large end thereof, a conical plug having spiral grooves about its periphery and mounted for free movement Within said chamber whereby said plug may be pushed back to orovlde an annular assa e for ressure fluidabout the plug tor flushing purposes and a spring interposed between said ferentiallywithin said conical chamber ad-- -]Z1C11t the'large end thereof, a conical plug having spiral grooves about its periphery and a recess centrally disposed in each end thereof, said plug being freely movable Within said casing, and one of said recesses being adapted to receive a suitable implement inserted'by Way of said spraying aperture whereby said plug may be pushed back to provide an annular passage about the plug for flushing purposes, and a coiled spring seating at one end against said abutment, and hav ng its, other end inserted Within the rema ning plug recess, whereby the passageway for, pressure fluid is substantially unobstructed by said spring.

In testimony of which invention, I here- 'unto set'my han d JAMES LOGAN FITTS.

W'tnesses:

Pnimr Q's. QUINN, VVILLIAB: H. SNYDER. 

